#include<stdio.h>
// Chuong trinh nhap va cong ba so
main()
{
      int a, b, c, sum;
      printf("\n Hay nhap vao 3 so:");
      scanf(" %d %d %d", &a, &b, &c);
      sum=a+b+c;
      printf("\n tong cua 3 so vua nhpa la: %d", sum);
      fflush(stdin);
      getchar();
      }
